John bomig



7 (Model.)

J. ROMIG.

DOOR LATGH.

No. 296,221. Patented Apr. 1,1884.

WITNESSES .UNITED STATES PATENT trio's.

JOHN BOMIG, OF MIFFLINBURG, PENNSYLVANIA.

DOOR-LATCH.

SPECIPICATION I'OIming part of Letters Patent No 296,221, dated April 1, 1884. Application filed January 10, 1884. (Model) To all whom it may concern.

Be it known that I, Jenn ROMIG, a citizen of the United States, and a resident of Mifllinburg, in the county of Union and State of Pennsylvania, have invented certain new and useful Improvements in'Door-Latchcs; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, referencebeinghad to the accompanying drawings, which form a part of this specification,

and in which Figure 1 is a side view of my improved door-latch, showing the side of the outer casing removed. Fig. 2 is a detail view. of the central portion of the spindle which operates the 1atch-bolt. Fig. 3 is a sectional view taken on line a: m, Fig. 1. Fig. at is a perspective detail view of the latch-bolt. Fig. 5 is a similar view of the-anti-friction block or slide; and Fig. 6 is a sectional view taken on line 3/ Fig. 1.

Similar letters of reference indicate corresponding parts in all the figures.

My invention relates to double-acting doorlatches, in which the latch-bolt is adapted to be drawn back, either by pushing in or pulling outward the door-knob, as well as by turn ing the same; and it consists in the improved construction and combination of parts of the same, as will be hereinafter more fully described and claimed.

In the accompanying drawings, A represents the box or outer casing, in which the operative parts of the latch are incascd.

B represents the latch-bolt, which is shown in detail in Fig. 4. of the drawings,thc main or body portion of the said bolt being provided with a longitudinal slot, 13, and rearwardly-extending arms C, the lower sides of which are provided with triangular or 'V- shaped recesses O, and are cut away at c, to adapt the said arms to engage with the pro- 5 jecting ends of the anti-friction block or slide D, which will be hereinafter described. The spindle E is provided at about its center with two projecting wings or lugs, E, beveled on that side which bears against the inclined faces 0 of the rear arms of the latch-bolt B. A spiral spring, F, is placed in the longitudinal slot B of the bolt B, one of its ends bearing against a lug, G, cast on the inner face of one of the sides of the outer casing, A. A lug, G, on the opposite side of the casing, (shown in Fig. 3 of the drawings) prevents the spiral spring from being forced out of position while the latch-bolt is being moved back or forth.

D indicates the anti-friction block or slide, (shown in detail in Fig. 5 of the drawings,) the lower bearing side of the said block being rounded to adapt it to rock to a certain extent as the latch bolt is advanced or'rctracted.

The manner in which my improved doorlatch operates is as follows: hen the door is closed and the latch is in its normal position, the spiral spring F forces the latch-bolt out, and the inclined faces of the arms G, passing under the wings E of the spindle, force the spindle out to one side. W'lgen it is desiredto open the door, the operator pushes in upon the outer knob of the spindle, when the wings E, acting upon the inclined faces of the'arms C, will force the latch-bolt back, so as to enable the door to be readily opened. When the latch-bolt is forced back in this manner, its rear part will ride upon the antifriction block D, which rocks upon its rounded side, by which arrangement the bolt is caused to work easily and with little friction.

From the foregoing description, taken in connection with the accompanying drawings, the construction and operation of my improved door-latchwill readily be understood without requiring further explanation.

It will be seen that by constructing my improved latch in the manner previously de scribed the door can be readily opened by any person when both hands are full, simply by pushing against the outer knob with the closed hand, elbow, or any part of the body. The door can also be opened from the inside by pulling upon the inner knob; or the door may be opened from either side in the usual manner by turning the knob.

The latch may be used on a door opening either from the right hand or left hand, as by reversing the anti-friction block and bolt the entire catch is reversed.

Having thus described my invention, 1 claim and desire to secure by Letters Patent of the United States- In a door-latch of substantially the described construction, the combination of the latch-bolt B, having a longitudinal slot, 13, and rearwardly-extending arms 0, the lower sides of which are provided with triangular or V-shaped recesses O, and are cut away at 0, spindle E, having wings E, anti-friction block D, constructed as described, and spiral spring F, bearing with its inner end against a suitable lug on the outer case, A, all con- IO structed and arranged to operate substantially in the manner and for the purpose shown and described.

In testimony that I claim the foregoing as my own I have hereunto affixed my signature in presence of two witnesses.

JOHN ROMIG.

Witnesses: I

JAMES HAUS, BENJAMIN FRANKLIN MoHR. 

